Petro Rio S.A (PTRRY) fair value: what the stock is really worth
As of Sep 23, 2026: fair value of Petro Rio S.A $5.41, price $11.55, upside -53.2%, quality 38 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.
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Price vs Fair Value
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 24, 2026.
How to read this chart
60‑month range $3.51 – $17.41 · fair‑value band $5.41 – $5.60 · the $11.55 price screens above the $5.41 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Sep 24, 2026.
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Prio S.A., together with its subsidiaries, engages in the exploration, development, and production of oil and natural gas properties in Brazil and internationally.
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Prio S.A., together with its subsidiaries, engages in the exploration, development, and production of oil and natural gas properties in Brazil and internationally. The company holds 100% interest in the Polvo Field covering an area of approximately 134 square kilometers located in the southern portion of the Campos Basin, Rio de Janeiro; and the Frade Field that consists of approximately 154 square kilometers located in the northern region of the Campos Basin, Rio de Janeiro. It also holds interest in the Albacora leste Field and the Wahoo and Itaipu Field located in the Camumu Basin, State of Bahia. In addition, the company imports, exports, refines, sells, and distributes oil, natural gas, fuels, and oil by-products; and engages in the generation, sale, and distribution of electric power, as well as holds interests in other companies. The company was formerly known as Petro Rio S.A. and changed its name to Prio S.A. in May 2023. Prio S.A. was incorporated in 2009 and is headquartered in Rio de Janeiro, Brazil.
Stock analysis
Petro Rio S.A (PTRRY) currently trades at $11.55, while our model-based Fair Value estimate is $5.41, implying the stock looks roughly 113.5% overvalued today.
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Valuation
Bull case: the Multiples group reads highest at a median of $31.10 per share, and 10 of the 10 models we run sit above the $11.55 price.
Bear case: the Asset-Based group reads lowest at $21.55, and 0 of the 10 models stay below the price. Evidence for this calculation is medium.
Scenario range: $5.41 (bear) to $5.60 (bull), the price of $11.55 sits above it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.
Quality & growth
The Quality Score stands at 38/100 (below-average quality), in the Energy sector.
Expensive Growth: The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Petro Rio S.A reported revenue of R$15.3B in FY2025 versus R$4.4B in FY2021, a compound +36.5%/yr. Reported net income was R$2.2B in FY2025, compounding +13.4%/yr from FY2021.
Key figures
Market cap $9.4B · P/E ratio 18.0 · P/S ratio 2.61 · EPS (TTM) $0.6400 · Net margin 14.4% · Return on equity 9.7% · Return on assets (EBIT) 14.9% · Operating margin 37.5%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 38 out of 100 (medium confidence).
What moves the price
The share trades about 20% below its 52-week high and 76% above its 52-week low, currently above its 200-day average.
For context, the median of 10 Energy peers we cover trades at 10% fair-value upside, at −53%, PTRRY screens richer than that median.
Fair Value models
Bear $5.41Fair Value $5.41Bull $5.60
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Based on fiscal year 2025 figures (about 9 months old). Earnings retained since then ($0.4682 per share) are deliberately not added.Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target.Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card.57/100
The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Revenue growth 1 year
+6.4%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+33.9%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+51.7%
Start year 2020 (pandemic). Over 10 years: +50.7% a year
Revenue growth 18 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+43.2%
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What shareholders gained per year (last 5 years), in BRL ⓘWhat the business itself delivers per year: earnings growth per share plus the dividend yield. This is what you get IF the market keeps valuing the stock the same way: it contains no assumption about the market changing its mind. Computed per share, so buybacks count and a merger does not pass as growth. For a company that pays no dividend it is pure earnings growth per share. Period: earnings growth per share as CAGR over the last 5 reported fiscal years (annual statements), plus the current dividend yield. The start value is the median of the three years around the start, so a single crisis year (a pandemic or a write-down) does not distort the rate. Measured in BRL: this currency has depreciated against the euro and dollar over the long run, so part of the nominal rate is currency erosion that never reaches a EUR/USD investor.
+23.3%
Earnings growth per share plus dividend.
Earnings per share, growth per year+23.3%
Dividend (yield on the price)0.0%
Pace: 5 vs 10 years ⓘTwo data points, not a trend model: earnings growth per share over the last 5 fiscal years against the last 10. Labelled "steady" when both rates are within 3 percentage points of each other, otherwise picking up or flattening. Shown only when ten years of history exist.23% vs 26%, steady
Profit margin 2020 to 2025 ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.50% → 14%
News mood ⓘNews mood, the average tone of recent news (10 articles), rated against how stocks are usually covered. 🚀 Hype = unusually upbeat · 🙂 Positive = above average · 😐 Neutral = typical · 🙁 Negative = below average · 😨 Very negative = unusually downbeat. It reflects the tone of coverage, not our valuation.Positive
Recent news coverage is more positive than average.
Price, fair value, quality and upside side by side.
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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Oil & Gas E&P · 306 stocks
Beats the industry median on 8/12 measures
Overall it ranks above its industry peers.
Valuation
Quality Score38 · Below median
Fair Value upside−53% · Bottom 25%
Profitability
Return on equity (TTM)10% · Above median
Return on assets4% · Above median
Net margin (TTM)15% · Above median
Operating margin (TTM)38% · Above median
Growth and dividend
Revenue growth47% · Top 25%
Balance sheet
Debt / equity1.00× · Highest 25%
Valuation Multiplesvs Oil & Gas E&P median · lower = cheaper
P/E (TTM)18.0× · Pricier than median
P/B0.36× · Cheapest 25%
P/S (TTM)0.53× · Cheapest 25%
EV/EBITDA3.3× · Cheapest 25%
Strength profile in five axes (Snowflake)
This stockSector peers
VALUE (fair-value potential)0· sector 28
FUTURE (revenue growth)100· sector 12
PAST (return on equity)39· sector 10
HEALTH (low debt)50· sector 86
DIVIDEND (yield)0· sector 73
VALUE 0: the price sits above our fair-value range.
For bloggers, editors and developers: paste this into your site or blog (a “Custom HTML” block in WordPress), it shows the current fair value and links back here. Free, plain HTML, and welcome. Full data streams (CSV/JSON) at /developers.
Cite: Fair Value Calculator (2026). "Petro Rio S.A Fair Value". https://www.fairvalue-calculator.com/stock/PTRRY
Frequently asked questions
Is Petro Rio S.A (PTRRY) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of $5.41 versus a price of $11.55, about −53% upside (overvalued).
What is the fair value of PTRRY?
Our model-based fair value for Petro Rio S.A is $5.41 (as of Sep 24, 2026), built from audited fundamentals. The current price: $11.55.
What is the quality score of PTRRY?
Petro Rio S.A has a Quality Score of 38/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Petro Rio S.A (PTRRY)?
Our model-based price target is the fair value of $5.41 (as of Sep 24, 2026) from 14 valuation models. Cautious scenario $5.41, optimistic scenario $5.60. It is a calculation from audited fundamentals, not an analyst target.
What is the Petro Rio S.A stock forecast for 2026?
Our models put fair value at $5.41, about −53% upside versus a price of $11.55 (overvalued). Cautious scenario $5.41, optimistic scenario $5.60. The calculation is refreshed regularly with new filings.
What is the revenue of Petro Rio S.A (PTRRY)?
Petro Rio S.A reported trailing-twelve-month revenue of about R$17.7B (latest available figure, as of Sep 24, 2026).
What is the intrinsic value of Petro Rio S.A (PTRRY)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Petro Rio S.A it is $5.41 per share (as of Sep 24, 2026), against a price of $11.55. It is the blended result of 14 valuation models (cash flow, earnings, asset, dividend).
Is Petro Rio S.A stock overvalued or undervalued in 2026?
As of Sep 24, 2026, PTRRY trades above its calculated fair value: price $11.55, fair value $5.41, a gap of about −53% (overvalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of PTRRY?
No. The price is what the market pays today ($11.55); the fair value is what the company's own numbers justify ($5.41). For Petro Rio S.A the two are $6.14 per share apart. That gap is exactly why we show both numbers side by side.
How much is Petro Rio S.A worth?
The market values Petro Rio S.A at about $9.4B (market capitalisation, as of Sep 24, 2026). Per share that is $11.55; our models calculate a fair value of $5.41 per share.
What do the bullish and bearish scenarios say about PTRRY?
Our models span a range for Petro Rio S.A: cautious scenario $5.41, base $5.41, optimistic $5.60 per share (as of Sep 24, 2026, price $11.55). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of PTRRY?
Petro Rio S.A trades at a price-to-earnings ratio of 18.0 (as of Sep 24, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of $5.41 is built from several models across several years. Other multiples: P/B 0.4, P/S 0.5, EV/EBITDA 3.3.
How solid is the balance sheet of Petro Rio S.A (PTRRY)?
Balance-sheet figures for Petro Rio S.A (as of Sep 24, 2026): return on equity 9.7%, debt of 1.00 per unit of equity. They feed the Quality Score of 38/100, which measures business quality independently of the share price.
How far is PTRRY from its 52-week high?
Petro Rio S.A trades at $11.55, about 20% below its 52-week high of $14.37 and 76% above the low of $6.55 (as of Sep 23, 2026). Distance from the high says nothing about value: that is what the fair value of $5.41 is for.
Which stocks are comparable to Petro Rio S.A?
From the same area (Energy) we also value CNOOC Limited, ConocoPhillips explores for,, Canadian Natural Resources Limited, EOG Resources, Inc, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Petro Rio S.A stock attractive at the current price?
The data as of Sep 24, 2026: price $11.55, calculated fair value $5.41 (−53%), Quality Score 38/100, from 14 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of PTRRY calculated?
We run Petro Rio S.A through 14 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of $5.41, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 14.1 % above its aggregate fair value. Petro Rio S.A itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Petro Rio S.A (PTRRY)?
The closing price on Sep 23, 2026 was $11.55. Our model-based fair value is $5.41, about −53% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Petro Rio S.A right now?
The price sits above even our optimistic bull case ($5.60). The favourable scenario is already priced in. Weak quality (38/100) and above fair value at the same time, the margin of safety is missing on both counts. The models converge in a tight band ($5.41 to $5.60), unusually little disagreement for a valuation.
Key figures of Petro Rio S.A
How large is the market capitalisation of Petro Rio S.A (PTRRY)?
The market capitalisation of Petro Rio S.A is $9.4B. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Petro Rio S.A (PTRRY)?
The price-to-sales ratio of Petro Rio S.A is 2.61 (P/E × margin). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of Petro Rio S.A (PTRRY)?
Earnings per share at Petro Rio S.A are $0.6400 (price ÷ EPS = P/E 18.0). Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of Petro Rio S.A (PTRRY)?
The net margin of Petro Rio S.A is 14.4% (fiscal year 2025). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Petro Rio S.A (PTRRY)?
The return on equity (ROE) of Petro Rio S.A is 9.7% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Petro Rio S.A (PTRRY)?
On an EBIT basis the return on assets of Petro Rio S.A is 14.9% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Petro Rio S.A (PTRRY)?
The operating margin of Petro Rio S.A is 37.5% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Petro Rio S.A (PTRRY)?
Revenue at Petro Rio S.A is growing +47.0% versus a year earlier (3y avg +33.9%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at Petro Rio S.A (PTRRY)?
Earnings per share at Petro Rio S.A are growing +16.7% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Petro Rio S.A (PTRRY) generate?
The free cash flow of Petro Rio S.A is −R$9.7B (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net debt does Petro Rio S.A (PTRRY) carry?
The net debt of Petro Rio S.A is R$25.0B (fiscal year 2025). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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Sep 24, 2026